What is "helicina"

Helicina is a genus of tropical and subtropical land snails with an operculum, terrestrial gastropod mollusks.

This is the type genus of its family ( Helicinidae) and subfamily ( Helicinae), as well as the superfamily Helicinoidea. This radiation is considered a fairly close relative e.g. of the water-living nerites (Neritidae), among the rather primitive snail clade Neritimorpha to which these all belong.